1. CJ-6 airscrew primary trainer, deployed in PLA airforce and civilian pilot training center for very long time, is still the main primary trainer of China.

2. First, the structure of helicopter airscrew loading system was introduced, On the basis of single channel loading system's math model, the system's dynamic performance was analyzed.

3. The work principle of the motor driving airscrew is presented in the dissertation. The reasons and the method of elimination or suppression of torque pulses produced by BLDCM are analyzed.

4. The airscrew included various propellers, fans, windmills and helicopter blades, etc.

5. In this thesis, the aerodynamic load simulation of one type of helicopter airscrew is studied, and the system's structure and its mathematic model are analyzed.

6. Dynamic aortic valve, a novel design for left ventricular assistance is proposed. An impeller similar to the airscrew is placed in the position of aortic valve.

7. As far back as 400B. C. , the Chinese were using the airscrew principle in building children's toys.

8. In the helicopter's half-practicality simulation laboratory, load simulator is an important equipment to simulate the aerodynamic load acting on the airscrew while flying.